no top end 50hp

[gilbert1244]

I have a 1995 50hp johnson everything works great until i get to half speed when i open it up i can't get any more speed & the buzzer goes off every now & then does anybody have any ideas whats wrong THANKS

 

[Lion hunter]

Re: no top end 50hp

I don't know how many different buzzer alarms are on the newer motors but it seems that overheat and low oil are the two main ones and where I'd start.

 

[HybridMX6]

Re: no top end 50hp

If it's not revving past half power, and giving an alarm, I'd suggest the carbs are fouled, and causing it to run lean in 1 cylinder, leading to low power, and an overheat situation on that 1 cylinder due to lack of lubrication, causing the alarm.

 

[jimdd810]

Re: no top end 50hp

I agree its time for a carb overhaul. I would pull the plugs to check and see if they are burning about the same. I would do a compression test also.

 

[jtexas]

Re: no top end 50hp

when the alarm sounds a steady tone, it means the motor is overheating and needs to be shut down like right now!

a continual beep-beep-beep indicates fuel restriction or oil pump malfunction, and a single beep every half minute or so means low oil reservoir level.

I agree, carb rebuild is most likely, but I would do the compression test first, it will tell if you've taken any damage by running it hot. I would also think seriously about changing the water pump impeller, just to be safe.

 

[gilbert1244]

Re: no top end 50hp

i'll try that out & let you know thanks alot

 

[gilbert1244]

Re: no top end 50hp

does anybody know the idle & air ajustments for 1995 50hp johnson before i start messing around with the carbs